We can assume Macbeth is feeling the emotion of "guilt" based on his vision of Banquo's ghost, since the ghost reminds him that he is responsible for the death.
Hope this helps! :)
Sorry for not explaining my answers cause there's a lot to answer but:
1 is compound
2 is interrogative
3 is clause
4 is simple
5 is conjunction i believe
6 is cause and effect
7 is inverted
8 is compound
9 is complex
10 is subject
11 is compound
12 is to buy
13 is to swim
14 is whom you met last week
15 is Since I do not want a hamburger, I will have a chicken sandwich.
16 is Even though our car broke down, we made it to the concert on time.
17 is whose, which, whom, that
18 is not there
19 is Traditional farmers
20 is The starving artist
21 is Each person
22 is We
Answer a seems to be the best choice to use